Apparatus for removing rolls from frames of roller-mills.



W. H. RAMAGB.

APPARATUS FOR REMOVING ROLLS FROM FRAMES 0F ROLLER MILLS.

APPLICATION FILED JAN. 3, 1914.

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APPARATUS FOR REMOVING ROLLS PROM FRAMES 0F ROLLER MILLS.

APPLICATION FILED JAN. 3, 1914.

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FIG i Patented Oct. 27, 1914 v N FIB- 5- Witneooeo WILLIAM H. RAMAGE, orYOUNGSTOWN, OHIO.

APPARATUS FOR REMOVING ROIiIiS FROM FRAMES O1? RdLLER-MIIiLS.

To all whom it may concern:

Be it known that I, WILLIAM a citizen. of the United States, residing atYoungstown, in the county of Mahoning and State of Ohio, have inventedcertain new and useful Improvements in Apparatus for Bemoving Rolls fromFrames of Roller-Mills;

' and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, and to the letters and figures ofreference marked thereon, which form a part of this specification.

, This invention relates to new and useful improvements in apparatusforremoving rolls from the frames of roller mills and comprises a simpleand eflicient apparatus of this nature whereby the rolls, whichsometimes are of enormous weight, may be easily and quickly picked upfrom their bearings and removed and other rolls carricdto and depositedwithin the bearings of the machine by ,suitable power driven apparatus.

The present invention comprises an apparatus of this nature havingvarious details of construction and combinations and a1"- rangements ofparts which will be hereinafter full described, shown in theaceompanying crawings and then specifically defined in the appendedclaims.

My invention is illustrated in the accompanying drawings, in whichFigure 1 is a side elevation of a part of a rolling mill showing theapparatus for lifting the roll in' engagement with one end of thespindle of the roll. Fig. 2 is an end View in elevation of the frameshowing the opening through which the rollers are moved to and fromtheir bearings. Fi 3 is a cross sectional View on line 33 of Fig. 1.Fig. 4 is a sectional view on line 4l4l of Fig. 1, and Fig. 5 is asection on line 55 of Fig. 1.

Reference now being had to the details of the drawings by letter, A, Adesignate the opposite sides of the frame of a roll mill, each havingopenings B formed therein of greater width than the diameters oftherolls C, each of which has a neck I), usually about half the diameter ofthe roll proper. Said necks are adapted to be mounted in chocks fittedinto the housings or frame and sustain the weight of the roll and theopposite end of each roll is provided with a Wobbler Specification ofLetters Patent. Application filed January 8, 1814. Serial No. 810,261.

H. RAMAGE,

Patented 0a. 27, 1914.

having prongs or corners, usually four in number and y which the roll isdriven, the said roll, necks and wobblers being one castmg or forging.Said housings are shown as having a ilatform A. at their upper endsprovided or supporting a motor which is adapted to operate means foradjusting rolls but which motor and adjusting means are not illustratedas they form no part of the present invention. i

A suitable carrier or derrick, designated by letter H, is provided atits lower end with a socket portion II, conforming to and adapted toreceive one end of the roll, and K designates a derrick carrying memberhaving a clevis L engaged by a hook N, which latter is adapted to beconnected to any suitable means for shifting from one point to anotheron a transmission mecha nism the derrick with the roll engaged thereby.A counterbalance weight 0 is mounted on the horizontally disposedportion of the derrick or carrier I and an adjusting screw Q is mountedin threaded apertures in the counterbalance weight Cand said member K. Agrooved pulley S is fixed to one end of the screw Q and over whichpulley a guard S extends and a chain T passes about the grooved pulleyand affords means for retating the same and the screw for the purpose ofadj listing the counterbalance weight to balance the vertical leg of thecarrier or derrick. A suitable stirrup, designated by letter J, isfastened to the side of the vertical leg or derrick and is provided forthe insertion of an ordinary lever or bar whereby an operator may steadythe carrier when"the lower end of the carrier is moved into engagementwith the roll to be moved.

In operation, when it is desired to change a roll by removing the samefrom the frame,

the chocks are first loosened, the carrier is brought adjacent to theroll mill at the socket end and the lower part of the carrier is movedinto engagement with the end of the roll. The crane hook is then raisedslightly, thus elevating the carrier and the roll with it. In the eventof the roll not remaining horizontal, the operating wheel S may beturned in one direction or the other, thereby causing the member K to bemoved and with it the counterbalance weight to cause the carrier andload to balance. This may be done rapidly as the rollsordinarily in amill would require only a maxiwill be exactly weight upon the horizontalend thereof. I

a carrier and likewise mum movement of the member K- afew inches inorder to balance the carrier and its load. The carrier may then bebodily moved with its load in order-to remove the roll through theopening in the end of the frame and may be taken to any placedesired anddeposited and a new roll replaced by reverse movement of the operationdescribed. I

YVhen the member K is adjusted to bring the latter directly over thecenter of gravity of the roll held by the socket at the lower end ofthe. carrier,- the horizontal leg of the the axis of the roll then betruly horizontal for the upward pull by the carrier hook and thedownward pull due to the weight of the roll will be coinciding verticalplanes and hence the forces will be in equilibrium and avoiding anytendency to rotation. At the same time, the weight of the vertical legof the carrier counterbalanced by the will hat I claim to be new is 1.An apparatus for removing rolls from rolling mills comprising a carrieradapted to engage the neck at one end of a roll, an adjustable member'inwhich a laterally extending portion of said carrier is adapted tocounterbalance welght be adjustably held, a upon the carrier and havinga threaded aperture therein, and a screw engaging the threaded aperture.in said counterbalance weight and in said carrier supporting: memher,as set forth.

An apparatus for removing rolls from rolling mills comprising to engagethe neck at one end of a roll, an adjustable member in. which alaterally extending portion of said carrier is adapted to be adjustablyheld, a counterbalance weight upon the. carrier and having a threadedaperture therein, a screw enga up; the threaded aperture in said counteralance Weight and in said carrier supporting member, a pulley fixed tosaid screw, and a chain passing about the pulley, as set forth. '3. Anapparatus for removing rolls from rolling; mills comprising a carrierhaving at its lower end a socket portron' receive the end of the neck ofa adapted to 7 roll, a supporting member mounted on a disposed portionof the carrier, ance Weight upon the carrier, said counterbalance weightand supporting member having registering threaded apertures, a screwenuaging said apertures, a pulley fixed to the screw, and an end aboutsaid pulley as set forth.

In testimony w ereof I hereunto atlix my signature in presence of twowithessesav Witnesses: MARION JoHNsroN, A. B. LIVINGSTONE.

WILLIAM H. seamen.

a carrier adapted. I

horizontally a counterballess chain passing 7

